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  <title>返回客户端进程统计信息</title>
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  <div id="layout-content"><div id="function.mysqli-get-client-stats" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">mysqli_get_client_stats</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.3.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">mysqli_get_client_stats</span> &mdash; <span class="dc-title">返回客户端进程统计信息</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.mysqli-get-client-stats-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>mysqli_get_client_stats</strong></span>(): <span class="type">array</span></div>

  <p class="para rdfs-comment">
   返回客户端进程统计信息
   仅可用于 <a href="book.mysqlnd.html" class="link">mysqlnd</a>。
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.mysqli-get-client-stats-parameters">
  <h3 class="title">参数</h3>
 </div>

 
 <div class="refsect1 returnvalues" id="refsect1-function.mysqli-get-client-stats-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   如果成功，则返回一个数组包含客户端进程的统计信息，否则返回 <strong><code>false</code></strong>。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.mysqli-get-client-stats-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-1545">
    <p><strong>示例 #1 A <span class="function"><strong>mysqli_get_client_stats()</strong></span> 例程</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_connect</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">mysqli_get_client_stats</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程的输出类似于：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
Array
(
    [bytes_sent] =&gt; 43
    [bytes_received] =&gt; 80
    [packets_sent] =&gt; 1
    [packets_received] =&gt; 2
    [protocol_overhead_in] =&gt; 8
    [protocol_overhead_out] =&gt; 4
    [bytes_received_ok_packet] =&gt; 11
    [bytes_received_eof_packet] =&gt; 0
    [bytes_received_rset_header_packet] =&gt; 0
    [bytes_received_rset_field_meta_packet] =&gt; 0
    [bytes_received_rset_row_packet] =&gt; 0
    [bytes_received_prepare_response_packet] =&gt; 0
    [bytes_received_change_user_packet] =&gt; 0
    [packets_sent_command] =&gt; 0
    [packets_received_ok] =&gt; 1
    [packets_received_eof] =&gt; 0
    [packets_received_rset_header] =&gt; 0
    [packets_received_rset_field_meta] =&gt; 0
    [packets_received_rset_row] =&gt; 0
    [packets_received_prepare_response] =&gt; 0
    [packets_received_change_user] =&gt; 0
    [result_set_queries] =&gt; 0
    [non_result_set_queries] =&gt; 0
    [no_index_used] =&gt; 0
    [bad_index_used] =&gt; 0
    [slow_queries] =&gt; 0
    [buffered_sets] =&gt; 0
    [unbuffered_sets] =&gt; 0
    [ps_buffered_sets] =&gt; 0
    [ps_unbuffered_sets] =&gt; 0
    [flushed_normal_sets] =&gt; 0
    [flushed_ps_sets] =&gt; 0
    [ps_prepared_never_executed] =&gt; 0
    [ps_prepared_once_executed] =&gt; 0
    [rows_fetched_from_server_normal] =&gt; 0
    [rows_fetched_from_server_ps] =&gt; 0
    [rows_buffered_from_client_normal] =&gt; 0
    [rows_buffered_from_client_ps] =&gt; 0
    [rows_fetched_from_client_normal_buffered] =&gt; 0
    [rows_fetched_from_client_normal_unbuffered] =&gt; 0
    [rows_fetched_from_client_ps_buffered] =&gt; 0
    [rows_fetched_from_client_ps_unbuffered] =&gt; 0
    [rows_fetched_from_client_ps_cursor] =&gt; 0
    [rows_skipped_normal] =&gt; 0
    [rows_skipped_ps] =&gt; 0
    [copy_on_write_saved] =&gt; 0
    [copy_on_write_performed] =&gt; 0
    [command_buffer_too_small] =&gt; 0
    [connect_success] =&gt; 1
    [connect_failure] =&gt; 0
    [connection_reused] =&gt; 0
    [reconnect] =&gt; 0
    [pconnect_success] =&gt; 0
    [active_connections] =&gt; 1
    [active_persistent_connections] =&gt; 0
    [explicit_close] =&gt; 0
    [implicit_close] =&gt; 0
    [disconnect_close] =&gt; 0
    [in_middle_of_command_close] =&gt; 0
    [explicit_free_result] =&gt; 0
    [implicit_free_result] =&gt; 0
    [explicit_stmt_close] =&gt; 0
    [implicit_stmt_close] =&gt; 0
    [mem_emalloc_count] =&gt; 0
    [mem_emalloc_ammount] =&gt; 0
    [mem_ecalloc_count] =&gt; 0
    [mem_ecalloc_ammount] =&gt; 0
    [mem_erealloc_count] =&gt; 0
    [mem_erealloc_ammount] =&gt; 0
    [mem_efree_count] =&gt; 0
    [mem_malloc_count] =&gt; 0
    [mem_malloc_ammount] =&gt; 0
    [mem_calloc_count] =&gt; 0
    [mem_calloc_ammount] =&gt; 0
    [mem_realloc_count] =&gt; 0
    [mem_realloc_ammount] =&gt; 0
    [mem_free_count] =&gt; 0
    [proto_text_fetched_null] =&gt; 0
    [proto_text_fetched_bit] =&gt; 0
    [proto_text_fetched_tinyint] =&gt; 0
    [proto_text_fetched_short] =&gt; 0
    [proto_text_fetched_int24] =&gt; 0
    [proto_text_fetched_int] =&gt; 0
    [proto_text_fetched_bigint] =&gt; 0
    [proto_text_fetched_decimal] =&gt; 0
    [proto_text_fetched_float] =&gt; 0
    [proto_text_fetched_double] =&gt; 0
    [proto_text_fetched_date] =&gt; 0
    [proto_text_fetched_year] =&gt; 0
    [proto_text_fetched_time] =&gt; 0
    [proto_text_fetched_datetime] =&gt; 0
    [proto_text_fetched_timestamp] =&gt; 0
    [proto_text_fetched_string] =&gt; 0
    [proto_text_fetched_blob] =&gt; 0
    [proto_text_fetched_enum] =&gt; 0
    [proto_text_fetched_set] =&gt; 0
    [proto_text_fetched_geometry] =&gt; 0
    [proto_text_fetched_other] =&gt; 0
    [proto_binary_fetched_null] =&gt; 0
    [proto_binary_fetched_bit] =&gt; 0
    [proto_binary_fetched_tinyint] =&gt; 0
    [proto_binary_fetched_short] =&gt; 0
    [proto_binary_fetched_int24] =&gt; 0
    [proto_binary_fetched_int] =&gt; 0
    [proto_binary_fetched_bigint] =&gt; 0
    [proto_binary_fetched_decimal] =&gt; 0
    [proto_binary_fetched_float] =&gt; 0
    [proto_binary_fetched_double] =&gt; 0
    [proto_binary_fetched_date] =&gt; 0
    [proto_binary_fetched_year] =&gt; 0
    [proto_binary_fetched_time] =&gt; 0
    [proto_binary_fetched_datetime] =&gt; 0
    [proto_binary_fetched_timestamp] =&gt; 0
    [proto_binary_fetched_string] =&gt; 0
    [proto_binary_fetched_blob] =&gt; 0
    [proto_binary_fetched_enum] =&gt; 0
    [proto_binary_fetched_set] =&gt; 0
    [proto_binary_fetched_geometry] =&gt; 0
    [proto_binary_fetched_other] =&gt; 0
)
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.mysqli-get-client-stats-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><a href="mysqlnd.stats.html" class="link">统计信息描述</a></li>
   </ul>
  </p>
 </div>


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